CN116632703B

CN116632703B - Handcart-type switch contact replacement tool

Info

Publication number: CN116632703B
Application number: CN202310672717.XA
Authority: CN
Inventors: 夏滨; 孙书峰; 李海龙; 任晓晗; 谢永宽; 周卫瑾; 赵传勇; 连维坤; 赵明慧; 孙春雷; 袁武坤; 冯岳鹏; 荣光; 王旭阳; 孙明丽
Original assignee: State Grid Shandong Electric Power Co Linqing Power Supply Co
Current assignee: State Grid Shandong Electric Power Co Linqing Power Supply Co
Priority date: 2023-06-06
Filing date: 2023-06-06
Publication date: 2024-03-29
Anticipated expiration: 2043-06-06
Also published as: CN116632703A

Abstract

The invention relates to the technical field of electric power construction tools, in particular to an assembly belt for replacing a handcart type switch contact and a handcart type switch contact replacement tool. The assembly belt is used for realizing the installation and fixation of the plum blossom contact, and the replacement tool is used for realizing the installation of the spring on the plum blossom contact surrounded by the plum blossom contact. The assembly belt comprises at least 6 assembly clamping bases, and a contact jack for clamping the plum blossom contact is arranged at the upper part of the assembly clamping bases. And connecting parts for connecting adjacent assembling clamping seats are arranged on two sides of the lower part of the assembling clamping seat. The invention is convenient for the disassembly of the spring, so that the installation of the spring can be in place once. Meanwhile, the invention is convenient for installing and detaching the plum blossom contact, and prevents the plum blossom contact from scattering.

Description

Handcart-type switch contact replacement tool

Technical Field

The invention relates to the technical field of electric power construction tools, in particular to a handcart type switch contact replacement tool.

Background

In the power system, a breaker in a transformer substation is main electric energy breaking equipment, so that safe breaking of electric energy can be ensured. In order to ensure safety, the circuit breaker is arranged in the high-voltage cabinet and is matched with equipment such as a disconnecting switch to realize breaking of electric energy. At present, a handcart type circuit breaker is more practical, and in the use process of the handcart type circuit breaker, a movable contact and a fixed contact are required to be connected and separated to realize isolation disconnecting link and opening and closing. Therefore, the movable contact and the fixed contact of the handcart type circuit breaker are parts with more actions, so that problems can occur frequently, and the movable contact and the fixed contact can be replaced in time to ensure safety.

The disassembly and assembly is very inconvenient due to the functional requirements of the snap-close contacts, which comprise the tulip contacts, the support plates and the springs. When the spring is detached, the plum blossom contact piece can scatter after the spring is taken down. The installation needs to be carried out one by one, so that the working efficiency is greatly reduced. Meanwhile, the tension of the spring is large, and the operation of personnel is very inconvenient, so that designing a handcart type switch contact replacement tool convenient to operate becomes an urgent requirement.

Disclosure of Invention

The invention aims to solve the technical problems that: a handcart-type switch contact replacement tool convenient to operate is provided.

The technical scheme for solving the technical problems is as follows: an assembly belt for replacing handcart type switch contacts comprises at least 6 assembly clamping seats; the upper part of the assembly clamping seat is provided with a contact jack for clamping the plum blossom contact; and connecting parts for connecting adjacent assembling clamping seats are arranged on two sides of the lower part of the assembling clamping seat.

Preferably, the connecting part is a flexible belt, and two ends of the flexible belt are fixedly connected with two adjacent assembly clamping seats; the flexible belts at the outer sides of the assembly clamping seats at the most edge are respectively provided with a magic tape; or the connecting part is a hinge shaft and a hinge ring; the hinge shaft at the outer side of the assembly clamping seat at the most edge is provided with a notch; or the connecting part and the bottom edges of the two adjacent assembly clamping seats are integrally formed into a flexible belt, and the two ends of the flexible belt are provided with magic tapes.

A handcart type switch contact replacement tool, comprising:

a first housing having a cylindrical shape with one end opened and a contact inlet provided on a side surface thereof;

the contact socket is cylindrical and arranged in the first shell;

one end of the telescopic device is fixedly connected with the inner bottom of the first shell, and the other end of the telescopic device is rotationally connected with the contact socket;

a winding drive provided inside the first housing; the winding drive includes:

the driving motor is fixedly connected with the inner bottom of the first shell, and the rotating shaft is connected with a non-cylindrical driving rod;

one end of the clutch driven rod is fixedly connected with the contact socket, and the other end of the clutch driven rod is provided with a linkage hole with the same section as the driving rod.

Preferably, a limiting protrusion is arranged on the side face of the contact socket.

Preferably, a guide opening is formed in the end portion of the clutch driven rod.

Preferably, the spring dismounting device further comprises a spring dismounting device, and the spring dismounting device comprises: a second housing and a detachable member. The second shell is cylindrical with two open ends, one end of the second shell is provided with a connecting outer ring, and correspondingly, the outer part of the closed end of the first shell is provided with an inner connecting part; the inner connecting part and the connecting outer ring form a connecting locking piece. The dismounting parts are uniformly distributed on the inner wall of the second shell; the dismounting component comprises a limiting block, a lifting rod, a dismounting rod, a stretching part and a release switch. The limiting block is long and provided with a long through hole in the length direction, and one end of the limiting block is fixedly connected with the front end of the inner wall of the second shell; the rear end of the lifting rod is hinged with the inner side of the connecting outer ring, and the front end of the lifting rod is inserted into the long through hole of the limiting block; the front section of the lifting rod is provided with a sliding hole in the length direction, the side surface of the lifting rod is provided with an operation hole, and the operation hole is in a spiral shape; the disassembly rod is inserted into the lifting rod, and an operation protrusion is arranged at a position corresponding to the operation hole; the operation protrusion is arranged in the operation hole in a sliding manner; one end of the stretching part is fixedly connected with the inside of the connecting outer ring, and the other end of the stretching part is connected with the end part of the lifting rod, so as to adjust the distance between the end part of the lifting rod and the axle center; the release switch is arranged in the second shell and used for driving the operation protrusion to slide in the operation hole so as to drive the disassembly rod to rotate and stretch.

Preferably, the end part of the disassembly rod is provided with a folding hook.

More preferably, the rotation angle of the spiral part of the operation hole is 90 ° or more.

More preferably, the stretching part is a memory alloy wire.

The application method of the handcart type switch contact replacement tool comprises the following steps:

step 1, paving an assembly belt to enable assembly clamping bases to be arranged in a line;

step 2, splicing plum blossom contact pieces into contact piece jack holes of the assembly clamping seat;

step 3, sleeving and installing the supporting sheet on the contact socket, and simultaneously splicing the supporting sheet with the plum blossom contact sheet on the assembly clamping seat at the end part of the assembly belt;

and 4, controlling the contact socket to rotate, winding the assembly belt on the upper part of the contact socket, and inserting each plum blossom contact piece on the assembly clamping seat on the supporting piece.

The beneficial effects of the invention are as follows:

1. the plum blossom contact piece is convenient to install and detach, and the plum blossom contact piece is prevented from scattering.

2. The spring is convenient to detach, so that the spring can be installed in place once.

Drawings

FIG. 1 is a schematic view of an assembled cassette according to an embodiment of the invention

Fig. 2 is a schematic view of an assembled belt of an embodiment of the present invention.

FIG. 3 is a schematic view of a connecting portion according to an embodiment of the present invention.

Fig. 4 is a schematic drawing showing the folding of an assembled belt according to an embodiment of the present invention.

Fig. 5 is a partial cross-sectional view of a change tool according to one embodiment of the invention.

Fig. 6 is a partial cross-sectional view of a change tool according to one embodiment of the invention.

Fig. 7 is a partial cross-sectional view of a removable component of an embodiment of the present invention.

FIG. 8 is a schematic diagram of the components of an embodiment of the present invention.

Fig. 9 is a schematic view of the first and second housing assembly components of an embodiment of the present invention.

In the figure:

363. releasing the chute; 362. pushing the pull ring; 361. a second drive; 2125. a reset section; 3110. a jack; 2124. a barb; 2122. a locking lever; 2121. a mounting part; 252. a first bearing; 253. a handle; 123. a spring; 122. t-shaped bolt; 121. a fixing ring; 350. a stretching section; 341. an operation protrusion; 340. disassembling the rod; 322. an operation hole; 321. a slide hole; 330. defining a block; 320. a lifting rod; 212. an inner connecting part; 311. connecting an outer ring; 310. a second housing; 245. a guide opening; 243. a clutch driven rod; 242. a driving rod; 241. a driving motor; 230. a contact receptacle; 220. a telescoping device; 211. a contact inlet; 210. a first housing; 120. a connection part; 110. a contact jack; 100. assembling a clamping seat;

Detailed Description

In order to make the technical scheme and beneficial effects of the present invention clearer, the following further explain the embodiments of the present invention in detail.

The application first discloses a handcart-type switch contact changes with equipment area, this equipment area mainly is used for realizing the restriction and the installation and the dismantlement of plum blossom contact.

Because the switch contacts with different sizes and different types have different structures, namely the number of plum blossom contacts is different, the assembly band comprises at least 6 assembly clamping bases 100, and the assembly clamping bases 100 are sequentially connected into a band shape. As shown in fig. 1, in order to fix the quincuncial contacts, a contact jack 110 for clamping the quincuncial contacts is provided at the upper portion of the assembly holder 100. For easy clamping, the assembly holder 100 may be made of rubber blocks, plastic blocks, or other materials, or a rubber layer may be attached to the inner wall of the contact jack 110 to increase friction force.

To achieve the strip connection, the two sides of the lower part of the assembly holder 100 are provided with connection parts 120 for connecting adjacent assembly holders 100. The connection portion 120 has the following several examples.

A first part

The connection portion 120 is a flexible band. The two ends of the flexible belt are fixedly connected with two adjacent assembly clamping seats 100. The flexible strap may be a plastic strap, rubber strap, wire braid strap, or the like. The two ends of the flexible band are fixedly connected with the lower edge of the assembly holder 100 or integrally formed.

When the integrated design is adopted, the assembly card holders 100 can be set to be assembled in different lengths, i.e. different numbers, according to different models.

As shown, after the quincuncial contacts are clamped into the contact jack 110, they need to be rounded and sleeved on the support pieces of the switch contacts, i.e. the assembly band is rounded. To achieve closure, the edge-most assembled cartridge 100 needs to be closed together. At this time, the length of the connecting portion 120 at the edge is the same as that of the connecting portion inside, and the a face of the magic tape is arranged below the connecting portion at one end, the B face of the magic tape is arranged above the connecting portion at the other end, and when the connecting portion is closed, the a face and the B face are bonded together to form a double-layer connecting portion, so that the assembly belt is closed.

Two (II)

Or the connection part 120 is a hinge shaft and a hinge ring. As shown in the drawing, the left connecting portion of the assembly holder 100 is provided as hinge rings, and two hinge rings are provided at both ends, respectively, for the purpose of achieving stability. The connection portion on the right side of the assembly cartridge 100 is provided as a hinge shaft, which may be inserted into the inside of the hinge ring.

To facilitate closure into a circular shape, the hinge shaft on the outside of the assembly cartridge 100 at the extreme edge is provided with a notch. The hinge shaft can be clamped into the hinge ring through the notch to realize connection.

Further, in order to realize adaptation to various models. The connection part provided with the hinge shaft includes a fixing ring 121, a T-shaped latch 122 inserted inside the fixing ring 121, and a spring 123 provided between the fixing ring 121 and the T-shaped latch 122.

When multiple ones are required, connection or insertion of a new assembled cartridge 100 may be accomplished by T-pins 122. When less assembly of the cartridge 100 is required, removal is performed by operating the T-shaped latch 122. Meanwhile, when the closed circular ring is formed, the closed assembly can be realized by pressing or pulling out the T-shaped bolt 122.

To prevent the T-shaped latch 122 from being separated, both ends of the spring 123 may be fixedly connected with the fixing ring 121 and the T-shaped latch 122.

Three kinds of

The connection portion 120 is provided as an elongated strip-shaped flexible band on which the assembly cartridge 100 is mounted. And the two ends of the flexible belt are respectively provided with A, B surfaces of the magic tape. The flexible belt can be closed by the magic tape.

Based on the above-described assembling belt for replacing the handcart type switch contact, a handcart type switch contact replacing tool may be provided, which includes the first housing 210, the contact socket 230, the telescopic device 220, and the winding drive.

The first housing 210 is used for protecting internal components and preventing accidental injury to operators. The first housing 210 is cylindrical, and one end of the first housing 210 is open, and the other end can be closed. An internal thread may be provided on the inside of the closed end of the first housing 210, and the blocking and connection may be accomplished using a closure provided with an external thread. The shape of the main body of the closed body can be a cylinder, external threads are arranged outside the main body, and a cavity can be arranged inside the main body for installing the controller. The outer end surface of the closure may be provided with a handle 253, and an operating switch may be provided on the handle 253. The switches operated include a rotary switch for controlling the rotation of the contact receptacle 230, a forward switch for controlling the forward or backward movement of the contact receptacle 230, and a backward switch.

Since the contact receptacle 230 is provided inside the first housing 210, when the replacement assembly tape needs to be wound around the contact receptacle 230, it is necessary to control the contact receptacle 230 to extend and rotate to wind the assembly tape. Alternatively, a contact inlet 211 is provided at a side of the first housing 210 corresponding to an initial position of the contact receptacle 230. After the quincuncial contacts are inserted into the assembly band, the assembly band is tiled on a table top or a platform, then the support plate is sleeved on the upper portion of the contact socket 230, the contact inlet 211 is covered on one end of the assembly band, then the rotary switch is started, the lower ends of the quincuncial contacts are inserted into the upper end of the assembly band and are inserted into the support plate, and the quincuncial contacts are wound and installed on the support plate through rotation. Thereby realizing the rapid installation of the plum blossom contact.

Since the inner part of the tulip contact is cylindrical and is used for plugging the terminal, the contact socket 230 is also cylindrical, and the outer diameter of the contact socket 230 is the same as the inner strength of the supporting piece of the tulip contact, so as to realize the sleeving of the two. Further, in order to define the support piece, a circle of limiting protrusions is provided at an end of the contact receptacle 230 near the closed end of the first housing 210, so as to limit the position of the support piece and prevent the support piece from being separated.

The telescopic device 220 is used for pushing out and retracting the contact socket 230, i.e. for moving the contact socket 230 forward or backward in the axial direction. One end of the telescopic device 220 is fixedly connected with the inner bottom of the first housing 210, and the other end is rotatably connected with the contact socket 230. Wherein the inner bottom of the first housing 210 is the inner side of the closed end. In order to realize the balance of the stress, the telescopic device is provided with at least 2 electric push rods, and 3 electric push rods are arranged in the embodiment. The fixed end and the closed end of the electric push rod are fixedly connected, the telescopic end of the electric push rod is fixedly connected with one rotating ring of the first bearing 252, and the other rotating ring of the first bearing 252 is fixedly connected with the contact socket 230.

The winding drive is disposed inside the first housing 210 and is located inside the space surrounded by the telescopic device 220. The winding drive includes a drive motor 241, a drive rod 242, and a clutch driven rod 243.

The driving motor 241 is fixedly connected with the inner bottom of the first housing 210, that is, the driving motor 241 is fixed on the inner side surface of the inner bottom of the first housing 210, that is, the closed end. A non-cylindrical drive rod 242 is connected to the shaft of the drive motor. One end of the clutch driven rod 243 is fixedly connected with the contact socket 230, and the other end is provided with a linkage hole with the same section as the driving rod 242. In this embodiment, the driving rod 242 has a rectangular cross-sectional shape, and correspondingly, the linkage hole has a rectangular cross-sectional shape. It is envisioned that the configuration may also be triangular, pentagonal, hexagonal, etc.

When the contact receptacle 230 is pushed out, the driving lever 242 is disengaged from the clutch driven lever 243, and the contact receptacle 230 is not required to be driven to rotate. When the quincuncial contacts are required to be mounted, the contact socket 230 is retracted to the initial position, and at this time, the driving rod 242 is combined with the clutch driven rod 243, so that the driving motor 241 can drive the contact socket 230 to rotate.

Further, in order to smoothly couple the driving rod 242 and the clutch driven rod 243, a guide opening 245 is provided at an end of the clutch driven rod 243. As shown in the figure, the outside of the guide port is in a horn shape, the inside of the wide-mouth end is in a circular shape, the cross-sectional shape of the narrow-mouth end, i.e., the end connected to the clutch driven rod 243, is in a rectangular shape, i.e., the cross-sectional shape of the narrow-mouth end is identical to the cross-sectional shape of the linkage hole.

In order to realize the installation and the disassembly of the spring of the plum blossom contact, the invention also discloses a spring disassembly and assembly device of the plum blossom contact. The spring dismounting device can be used independently or combined with a handcart type switch contact replacing tool.

The spring removing and installing device includes a second housing 310 and removing and installing parts.

The second housing 310 has a cylindrical shape with both ends open. When the spring dismounting device is independently used, one end of the spring dismounting device is used for realizing the dismounting of the spring, and the other end of the spring dismounting device is provided with a handle for realizing the taking of the device.

When the spring dismounting device is used in combination with the contact replacement tool, one end of the second housing 310 is used for dismounting the spring, and the other end is provided with a connection outer ring 311. Correspondingly, an inner connecting portion 212 is provided at the outside of the closed end of the first housing 210. The inner connecting portion 212 and the connecting outer ring 311 form a connecting locking member for realizing the combination of the first housing 210 and the second housing 310.

Wherein a connection outer ring 311 is provided to achieve an increase in the interval between the second housing 310 and the first housing 210 to facilitate the installation of the pulling member. Wherein the connection outer ring 311 may be provided as a member having an internal thread, and correspondingly, the inner connection portion 212 is provided as an external thread at the outside of the first housing 210, which are connected by screw-coupling.

Or the connection outer ring 311 and the inner connection 212 are a fastener and a lock of a buckle assembly provided on the second housing 310, the first housing 210, respectively. The first housing 210 and the second housing 310 are connected by a snap.

Or the connection outer ring 311 is provided with evenly distributed jacks 3110, the inner connecting portion 212 is a plug arranged on the outer side of the first housing 210, the main body of the plug is a right-angle turnover piece, one end of the plug is a mounting portion 2121, the mounting portion 2121 is fixedly connected with the first housing 210, a locking portion perpendicular to the mounting portion 2121 is provided, and the locking portion is used for being inserted into the jacks. To achieve automatic locking, the locking portion of the plug is made of two symmetrical and outwardly expanding locking bars 2122, 2122 being resilient members. The outer side of the middle part of the locking rod 2122 is provided with a barb 2124, and the end part of the locking rod 2122 is a reset part 2125. Pressing the reset portion when unlocking is desired causes the barbs to compress inwardly, thereby unlocking the barbs from the receptacles 3110.

The dismounting component is used for lifting the lifting rod 320, so that the free end of the lifting rod 320 is far away from the axial lead of the second housing 310, and the dismounting rod 340 can be driven to take down the spring. In order to reduce the instantaneous power consumption, the detachable parts are provided in plurality and uniformly distributed on the inner wall of the second housing 310. Wherein the detachable components include a limiting block 330, a lifting lever 320, a detaching lever 340, a stretching portion 350, and a release switch.

The limiting block 330 is used to limit the movement range of the lifting lever 320 or the detaching lever 340, so that the lifting lever 320 or the detaching lever 340 moves in the radial direction of the second housing 310 where it is located, preventing the movement of rotating around the second housing 310. The limiting block 330 is a long block shape provided with a long through hole of a long strip shape in its length direction.

Alternatively, the defining block 330 is directly provided as a rectangular frame, and the length direction of the rectangular frame coincides with the radial direction of the second housing 310. One end of the limiting block 330 is fixedly coupled with the front end of the inner wall of the second housing 310.

In order to realize the lifting, the rear end of the lifting rod 320 is hinged with the inner side of the connecting outer ring 311, and the front end is inserted into the long through hole of the limiting block 330.

The lifting rod 320 and the detaching rod 340 are combined parts, and the two parts are combined into a whole to work. The front section of the lifting lever 320 is provided with a sliding hole 321 in a length direction, the detaching lever 340 is inserted in the sliding hole 321, and one end of the detaching lever 340 protrudes out of the lifting lever 320 and extends to the outside of the second housing 310. The hinge point between the lifting rod 320 and the connecting outer ring 311 is located at the middle of the connecting outer ring 311, and at this time, the radius of the end of the detaching rod 340 can be reduced, so that the spring in the contracted state can be sleeved on the detaching rod 340. In order to prevent the spring from falling off or the risk of slipping during operation, the end of the removal lever 340 is provided with a snap hook. Wherein the folding hooks are folded outwards.

In order to realize the disassembling operation, namely, the spring is disassembled from the disassembling rod 340, an operation hole 322 is arranged on the side surface of the front section of the lifting rod 320, an operation protrusion 341 is arranged on the disassembling rod 340 corresponding to the operation hole 322, and the operation protrusion 341 is arranged inside the operation hole 322 in a sliding manner. As shown, the operation protrusion 341 protrudes to the outside of the lift lever 320 through the operation hole 322.

In order to rotate the dismounting lever 340 so that the orientation of the folding hook is tangential to the surface of the second housing 310 or is directed toward the inside of the second housing 310, the operation hole 322 is provided in a spiral shape, and the entire length thereof is rotated by an angle of at least 90 degrees. At this time, the detaching lever 340 is moved toward the closed end and rotated by pushing the operating protrusion 341, and when the folding hook is rotated to be parallel to the tangential line of the second housing 310, the spring fitted over the detaching lever 340 loses the blocking of the folding hook, so that the sliding of the spring can be realized. Therefore, in the operation process of sleeving the spring on the tulip contact, after the position is adjusted, the angle of the dismounting rod 340 is adjusted to be inclined from the free end to the axis, and then the operation protrusion 341 is pushed to release the limitation of the folding hook on the spring, so that the spring automatically slides onto the tulip contact.

The stretching part 350 is a main driving module for adjusting the inclination of the detaching lever 340. The stretching portion 350 may be an electric push rod, a fixed end of the electric push rod is fixedly connected with the connecting outer ring 311, a telescopic end of the electric push rod is connected with a pull rope, the pull rope bypasses a pulley arranged on the limiting block 330 and is fixedly connected with the front end of the lifting rod 320, and the angle of the lifting rod 320 is adjusted through telescopic action of the electric push rod.

In this embodiment, in order to reduce power consumption of a single electric putter, six disassembling parts are provided, that is, six electric putters drive the lifting rod 320, so that tension to the spring can be dispersed.

Alternatively, the stretching portion 350 is a memory alloy wire. One end of the memory alloy wire is fixedly connected with the inside of the outer connection part 120, and the connection point is close to the inner wall of the second housing 310. The other end of the memory alloy wire is fixedly coupled to the front end of the lift rod 320 through a pulley provided on the limiting block 330. The two ends of the memory alloy wire are connected with the power supply module. The memory alloy wire shortens after being electrified so as to have the effect of lifting. The memory alloy wires are adopted, so that the volume occupation is reduced, and the overall mass is also reduced.

The release switch is disposed inside the second housing 310 to drive the operation protrusion 341 to slide in the operation hole 322, thereby driving the disassembly lever 340 to rotate and retract. The release switch in this embodiment includes a second drive 361, a push-pull ring 362, and a release chute 363 provided on the inner wall of the second housing 310.

The second drive 361 is an electric telescopic rod. The second drive 361 is fixedly installed on the inner wall of the second housing 310. The push-pull ring 362 is sleeved on the cylindrical space formed by the pull rod 320, and a support column is arranged on the outer side of the push-pull ring 362, and the end part of the support column is slidably inserted in the release chute 363. In this embodiment, the movable range of the lifting rod is 0 to 5 °. The push tab 362 abuts against the operation protrusion in the range of 0 to 1 °.

For realizing the electrical control, the connection outer ring 311 is provided as a hollow cylinder, a control circuit such as a power supply is provided in the connection outer ring, and a control device of a switch is provided on the housing thereof for realizing the control of the second drive and the memory alloy wire. Or a control interface such as a plug terminal or the like may be provided. Correspondingly, the controller inside the enclosure of the first housing 210 is provided with a corresponding control circuit, and the enclosure is provided with plug terminals that match the plug terminals on the connection outer ring 311. The two can be connected through the wire provided with the plug-in terminal, so as to realize control.

Wherein the memory metal wire and the control circuit are simpler, and specifically: the memory alloy wire is connected with the power switch and the power supply in series. The control circuit of the second drive is: the second drive is connected with a power supply through a reversing switch.

The method for realizing the installation of the tulip contact by using the device disclosed by the invention comprises the following steps:

step 1, paving the assembly belt to enable the assembly clamping seat 100 to be arranged in a line.

Step 2, the plum blossom contacts are inserted into the contact jack 110 of the assembly card 100.

And 3, sleeving and installing the supporting sheet on the contact socket 230, and simultaneously plugging the supporting sheet with the plum blossom contact sheet on the assembly clamping seat at the end part of the assembly belt. That is, the upper portion of one of the quincuncial contacts is plugged into the receptacle on the support plate on the contact receptacle 230, and the lower portion is plugged into the contact receptacle 110 on the assembled card 100 at the end.

Step 4, the driving motor 241 is started to rotate by the control switch on the handle 253, and as the number of the assembly clamping bases 100 on the assembly belt is the same as the number of the plum blossom contact pieces clamped on the supporting piece, the assembly belt is uniformly distributed on the circumference after being encircled, namely, the angle between the two assembly clamping bases 100 is the same as the angle between the two plum blossom contact piece jacks on the supporting piece. At this time, each of the plum blossom contacts on the assembly card holder 100 is inserted into the supporting piece while the contact receptacle 230 is rotated. After the quincuncial contact is installed, the quincuncial contact can be closed through the combined parts at the two ends of the assembly belt, so that the quincuncial contact inserted on the support sheet is fixed, and the quincuncial contact is prevented from scattering, and the installation of a subsequent spring is affected.

Step 5, the first housing 210 is combined with the second housing 310, and the electrical interface between the two is connected.

In the initial state, the free end of the dismounting rod 340, i.e. the end with the folding hook, is close to the axle center, and the radius of the circle enclosed by the end of the dismounting rod is smaller than the radius of the spring to be mounted. At this time, the spring is sleeved on the cylinder surrounded by the disassembly rod, and the spring is sleeved on the cylinder with smaller radius, so that the sleeving is very easy.

And 7, controlling the stretching part to lift the dismounting rod 340. If a memory alloy wire is used, the memory alloy wire is energized, and then contracts to flatten the lift rod 320 and parallel to the axis of the second housing 310. At this time, the spring is spread.

Step 8, controlling the telescopic device 220 to push out the contact socket 230 until the spring clamping groove on the supporting plate corresponds to the position of the spring. In this embodiment, the spring engaging recess on the support plate is spaced from the spring by a distance that is the same as or similar to the distance traveled by the spiral line of the operation hole 322 in the axial direction thereof. Besides the grooves for clamping the plum blossom contact pieces, the grooves for clamping the springs are also arranged on the support pieces, and the plum blossom contact is generally provided with springs at two ends, and the other ends of the plum blossom contact are provided with two springs, so that the corresponding spring clamping grooves are arranged on the support pieces.

Step 9, controlling the telescopic device 220 to retract the contact socket 230, and if the plum blossom contact on the contact socket 230 does not affect the re-sleeving of the spring, the step can not be executed.

And 10, restoring the disassembly rod to the initial position, and sleeving the spring with the installation again.

And 11, controlling the telescopic device 220 to push the position, which is not clamped with the spring, on the supporting plate to the position corresponding to the spring on the dismounting rod 340, and then controlling the release switch to release the spring again so that the spring falls into the spring clamping groove.

When the disassembly is carried out, the method comprises the following steps:

step 1, controlling the telescopic device 220 to push out the contact 230, inserting the complete tulip contact on the contact socket 230, and then wrapping the tulip contact by using the assembly band and combining the assembly band into a circle to fix the tulip contact of the tulip contact. The packing process ensures that each quincuncial contact is inserted into the contact receptacle 110.

Step 2, the contact receptacle 230 is moved to the outside of the removal bar 340, and then pulled, until the contact receptacle 230 approaches the closed end. At this time, the dismounting rod is inserted into the inside of the tulip contact through the slit and the spring is caught, and at this time, the movement of the contact receptacle 230 is stopped and the pulling portion 350 is controlled to pull the pulling rod 320, so that the outer diameter of the spring becomes large and is separated from the tulip contact.

Step 3, the contact receptacle 230 is continuously moved to enable the tulip contact to enter the first housing 210.

And 4, controlling the stretching part to reset, wherein the radius of the spring is reduced to restore to a normal state and is smaller than that of a cylinder formed by the disassembly rod in the initial state, and at the moment, the spring naturally falls off to realize the disassembly and assembly of the spring.

And 5, sequentially removing all the springs according to the steps.

And 6, removing the plum blossom contact without the spring, and opening the assembly belt to enable the plum blossom contact to be spliced on the assembly clamping seat 100 of the assembly belt. Then, the plum blossom contact can be replaced, overhauled and the like, and the contact which needs to be replaced can be replaced.

In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and the related workers can make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but includes all equivalent changes and modifications in shape, construction, characteristics and spirit according to the scope of the claims.

Claims

1. The utility model provides a handcart-type switch contact change instrument which characterized in that:

comprising the following steps:

a first housing (210) which is in a cylindrical shape with one end open and is provided with a contact inlet (211) on the side surface;

a contact socket (230) which is cylindrical and is arranged inside the first housing (210);

one end of the telescopic device (220) is fixedly connected with the inner bottom of the first shell (210), and the other end of the telescopic device is rotationally connected with the contact socket (230);

a winding drive provided inside the first case (210); the winding drive includes:

a driving motor (241) fixedly connected with the inner bottom of the first shell (210), and a non-cylindrical driving rod (242) is connected with the rotating shaft;

one end of the clutch driven rod (243) is fixedly connected with the contact socket (230), and the other end of the clutch driven rod is provided with a linkage hole with the same section as the driving rod (242);

a limit protrusion is arranged on the side surface of the contact socket (230);

still include spring dismouting device, spring dismouting device includes:

a second casing (310) having a cylindrical shape with both ends open, one end of which is provided with a connecting outer ring (311), and correspondingly, an inner connecting portion (212) is provided outside the closed end of the first casing (210); the inner connecting part (212) and the connecting outer ring (311) form a connecting locking piece;

the dismounting parts are uniformly distributed on the inner wall of the second shell (310); the detachable component comprises:

a limiting block (330) which is long and provided with a long through hole in the length direction, and one end of which is fixedly connected with the front end of the inner wall of the second shell (310);

the rear end of the lifting rod (320) is hinged with the inner side of the connecting outer ring (311), and the front end of the lifting rod is inserted into the long through hole of the limiting block (330); a sliding hole (321) is formed in the front section of the lifting rod (320) in the length direction, an operation hole (322) is formed in the side face of the lifting rod, and the operation hole (322) is in a spiral shape;

the dismounting rod (340) is inserted into the lifting rod (320), and an operation protrusion (341) is arranged at a position corresponding to the operation hole (322); the operation protrusion (341) is slidably disposed inside the operation hole (322);

one end of the stretching part (350) is fixedly connected with the inside of the connecting outer ring (311), and the other end of the stretching part is connected with the end part of the lifting rod (320) for adjusting the distance between the end part of the lifting rod (320) and the axle center;

the release switch is arranged in the second shell (310) and used for driving the operation protrusion (341) to slide in the operation hole (322) so as to drive the disassembly rod (340) to rotate and stretch.

2. A handcart type switch contact changing tool according to claim 1, wherein:

the end of the clutch driven rod (243) is provided with a guide opening (245).

3. A handcart type switch contact changing tool according to claim 1, wherein:

the end part of the disassembly rod (340) is provided with a folding hook.

4. A handcart type switch contact changing tool according to claim 1, wherein:

the rotation angle of the spiral part of the operation hole (322) is more than or equal to 90 degrees.

5. A handcart type switch contact changing tool according to claim 1, wherein:

the stretching part (350) is a memory alloy wire.